While teaching the fourth grade about design I showed them how good design (from a simple idea) can make all the difference in the world. Tim Brown of IDEO say that to be an innovative designer you need to problem solve using 3 lenses: Empathy, intuition and inspiration. I showed the student a prime example of that thinking.
I asked the students how we could improve the water gathering system for these people. The students had so many great ideas (there are no bad ideas).
I then showed them a simple idea from Hippo Roller. http://www.hipporoller.org/